The markings match glibc markings.
login: MT-Unsafe race:utent sig:ALRM timer
logout: MT-Unsafe race:utent sig:ALRM timer
Signed-off-by: Zeng Linggang <zenglg.jy@xxxxxxxxxxxxxx>
---
man3/login.3 | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
diff --git a/man3/login.3 b/man3/login.3
index fe03b5a..98d3b91 100644
--- a/man3/login.3
+++ b/man3/login.3
@@ -109,6 +109,41 @@ user accounting log file, configured through
.B _PATH_WTMP
in
.I <paths.h>
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lb lb lbw20
+l l l.
+Interface Attribute Value
+T{
+.BR login (),
+.br
+.BR logout ()
+T} Thread safety T{
+MT-Unsafe race:utent
+.br
+sig:ALRM timer
+T}
+.TE
+
+In the above table,
+.I utent
+in
+.I race:utent
+signifies that if any of the functions
+.BR setutent (3),
+.BR getutent (3),
+or
+.BR endutent (3)
+are used in parallel in different threads of a program,
+then data races could occur.
+.BR login (3)
+and
+.BR logout (3)
+calls those functions,
+so we use race:utent to remind users.
.SH CONFORMING TO
Not in POSIX.1-2001.
Present on the BSDs.
--
1.9.3
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